Target object identification method and device and key point detection method and device

The embodiment of the invention provides a target object identification method and device and a key point detection method and device, and the method comprises the steps: carrying out the detection of a target image, and obtaining position thermodynamic diagrams corresponding to a plurality of preset key points on a target object in the target image; wherein the thermodynamic value of each pixel point in the position thermodynamic diagram represents the probability that the corresponding pixel point in the target image is a preset key point corresponding to the position thermodynamic diagram; and determining the category of the target object based on the position thermodynamic diagrams corresponding to the preset key points and the corresponding relationship between the preset object category and the key points. 本公开实施例提供一种目标对象的识别方法和装置、关键点检测方法和装置，所述方法包括：对目标图像进行检测，得到所述目标图像中的目标对象上的多个预设关键点分别对应的位置热力图；其中，所述位置热力图中每一像素点的热力值表征所述目标图像中对应的像素点为与所述位置热力图对应的预设关键点的概率；基于各个预设关键点分别对应的位置热力图，以及预设的对象类别与关键点之间的对应关系，确定所述目标对象的类别。